net: Cleanup class/struct forward declarations

net/quic/core/quic_client_promised_info.h

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_QUIC_CLIENT_PROMISED_INFO_H_
 #define NET_QUIC_QUIC_CLIENT_PROMISED_INFO_H_
 
 #include <sys/types.h>
 #include <string>
 
 #include "net/base/net_export.h"
 #include "net/quic/core/quic_alarm.h"
 #include "net/quic/core/quic_client_push_promise_index.h"
 #include "net/quic/core/quic_client_session_base.h"
 #include "net/quic/core/quic_protocol.h"
 #include "net/quic/core/quic_spdy_stream.h"
 #include "net/spdy/spdy_framer.h"
 
 namespace net {
 
 class QuicClientSessionBase;
-class QuicDataToResend;
-class QuicConnectionHelperInterface;
 
 namespace test {
 class QuicClientPromisedInfoPeer;
 }  // namespace test
 
 // QuicClientPromisedInfo tracks the client state of a server push
 // stream from the time a PUSH_PROMISE is received until rendezvous
 // between the promised response and the corresponding client request
 // is complete.
 class NET_EXPORT_PRIVATE QuicClientPromisedInfo
@@ skipping 73 matching lines @@
   // The promise will commit suicide eventually if it is not claimed
   // by a GET first.
   std::unique_ptr<QuicAlarm> cleanup_alarm_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicClientPromisedInfo);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CLIENT_PROMISED_INFO_H_